RelapsingFeverBorrelien
Relapsing Fever Borrelien refers to a group of spirochete bacteria belonging to the genus Borrelia that cause relapsing fever. These bacteria are obligate parasites transmitted by arthropod vectors, primarily ticks (in the case of tick-borne relapsing fever, TBRF) and lice (in the case of louse-borne relapsing fever, LBRF). The characteristic feature of these infections is the recurrent episodes of fever, separated by afebrile periods.
Borrelia species are typically slender, spiral-shaped microorganisms that are motile due to periplasmic flagella. They are
Tick-borne relapsing fever is caused by various Borrelia species, with Borrelia recurrentis being the primary cause